Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Marguerite Jean Ryan, LMFT, CADAC II

Mental Health Counselor in North Chelmsford, MA · enumerated 2007 · practices at Chelmsford Family Practice, PC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1700938164

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Registry record

Entity type Individual (Type 1)

Name Mrs. Marguerite Jean Ryan

Credential LMFT, CADAC II

Sex Female

Practice address North Chelmsford, MA, 01863

Phone (978) 251-1160

Fax (978) 251-8453

Enumeration date Jan 17, 2007

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 888 (MA) Primary

LMFT · Licensed Marriage and Family Therapist: A licensed therapist specializing in relational and family psychotherapy. About the LMFT credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What specialty is Marguerite Ryan?

Marguerite Ryan is registered in NPPES with the primary taxonomy of Mental Health Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.